Chemistry. 107 
13. Ashes of Human Blood and Saliva, (Chemist, Feb. 1845, p. 88.) 
—One hundred parts of the human blood contain— 
Tribasic phosphate of soda, ‘ - ‘ 22:100 
Chloride of sodium, .- ; ‘ : . 54-769 
Chloride of potassium, i ‘ , , 4416 
Sulphate of soda, ; ‘ . ‘ 2°461 
Phosphate of lime, - ‘ ; . , 3°636 
Phosphate of magnesia, . . . ’ 
Oxide of iron with phosphate of iron, . . 10-770 
One hundred parts of the ashes of the saliva contain— 
Tribasic phosphate of soda, ‘ : ‘ 28.122 
Chlorides of sodium and potassium, . ‘ 61.930 
Sulphate of soda, .- ’ ‘ ‘ ‘ 2.315 
Phosphates of lime, magnesia andiron, - 5.509 
J. L. 8. 
14. Separation of Tin from Antimony ; by A. Levot, (Ann. de 
Chim. et de Phys. Jan. 1845,)—If these two metals be in the form of an 
alloy, reduce to a thin plate, and heat with hydrochloric acid; after 
boiling for a few minutes, add chlorate of potash in small quantities at 
a time, until all the metal is taken into solution; now precipitate the 
metals with a bar of pure zinc, which must be withdrawn after this 
operation is completed ; and then add a portion of concentrated. hy- 
drochloric acid about equal to the quantity first employed—this is done 
without removing the chloride of zinc—the whole is now boiled, 
and the tin is re-dissolved entirely at the expiration of about one hour, 
the antimony remaining in the form of a fine black powder, which 
may be collected on a filter and weighed ; the tin can now be precipi- 
tated by sulphuretted hydrogen, J. L. 8. 
15. Formation of Lactic Acid from Cane Sugar ; by Prof. H. 
Von Buucuer, (Chem. Gazet, Ap. 1845, p. 151, and Pogg. Annalen, Vol. 
Ixiii, p, 425.)—It was formed by fermenting a solution of sugar wi 
well washed caseine, and the following is one of the experiments per- 
formed—1400 grms. of cane sugar were dissolved in 6000 grms. 
water, and 400 grms. moist, (containing 94 grms. dry) caseine, and a 
sufficient quantity of finely pulverized chalk mixed with it, and the 
whole exposed to a temperature of 77° to 86° Fabr. In the course of 
four weeks the whole formed a crystalline paste. After one re- 
crystallization, 870 grms. crystallized lactate of lime, were obtain- 
ed; and the mother-ley somewhat evaporated yielded 162 grms. crys- 
tallized mannite. The latter, however, was not perfectly pure, and 
contained 36 per cent. lime, probably in combination with lactic 
acid. In the liquid separated by filtration from the mannite, there sub- 
sided, on evaporation over the water bath, a further quantity of minute 
